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Date: Thu, 29 Feb 2024 10:56:32 +0100
Message-Id: <CZHH1KDAVDCC.1INC050YK8HU1@bootlin.com>
Subject: Re: [PATCH v2 00/30] Rework Nomadik GPIO to add Mobileye EyeQ5
 support
Cc: "Bartosz Golaszewski" <brgl@bgdev.pl>, "Rob Herring"
 <robh+dt@kernel.org>, "Krzysztof Kozlowski"
 <krzysztof.kozlowski+dt@linaro.org>, "Conor Dooley" <conor+dt@kernel.org>,
 "Philipp Zabel" <p.zabel@pengutronix.de>, "Thomas Bogendoerfer"
 <tsbogend@alpha.franken.de>, <linux-gpio@vger.kernel.org>,
 <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
 <linux-arm-kernel@lists.infradead.org>, <linux-mips@vger.kernel.org>,
 "Gregory CLEMENT" <gregory.clement@bootlin.com>, "Vladimir Kondratiev"
 <vladimir.kondratiev@mobileye.com>, "Thomas Petazzoni"
 <thomas.petazzoni@bootlin.com>, "Tawfik Bayouk"
 <tawfik.bayouk@mobileye.com>, "Krzysztof Kozlowski"
 <krzysztof.kozlowski@linaro.org>, "Stephen Warren" <swarren@wwwdotorg.org>,
 "Jonathan Corbet" <corbet@lwn.net>, <linux-doc@vger.kernel.org>
To: "Linus Walleij" <linus.walleij@linaro.org>
From: =?utf-8?q?Th=C3=A9o_Lebrun?= <theo.lebrun@bootlin.com>
References: <20240228-mbly-gpio-v2-0-3ba757474006@bootlin.com>
 <CACRpkdbK2Sa_4qp3VE0ivHP8W6F-QDkuxV-XnZYviAkO5ZBMsg@mail.gmail.com>
In-Reply-To: <CACRpkdbK2Sa_4qp3VE0ivHP8W6F-QDkuxV-XnZYviAkO5ZBMsg@mail.gmail.com>

Hello,

On Thu Feb 29, 2024 at 10:44 AM CET, Linus Walleij wrote:
> On Wed, Feb 28, 2024 at 12:28=E2=80=AFPM Th=C3=A9o Lebrun <theo.lebrun@bo=
otlin.com> wrote:
>
> > This patch series reworks the Nomadik GPIO driver to bring it up to dat=
e
> > to current kernel standards. We then add Mobileye EyeQ5 support that
> > uses the same IP block but with limited functionality. We also add
> > features required by our newly supported platform:
> >
> >  - Dynamic GPIO ID allocation;
> >  - Make clock optional;
> >  - Shared IRQ (usecase: EyeQ5 has two banks using the same IRQ);
> >  - Handle variadic GPIO counts (usecase: EyeQ5 has <32 GPIOs per bank);
> >  - Grab optional reset at probe (usecase: EyeQ5 has a shared GPIO reset=
).
> >
> > This GPIO platform driver was previously declared & registered inside
> > drivers/pinctrl/nomadik/pinctrl-nomadik.c, side-by-side with the
> > pinctrl driver. Both are tightly integrated, mostly for muxing reasons.
> > Now that gpio-nomadik is used for another platform, we loosen the
> > relationship. The behavior should not change on already supported
> > hardware but I do not have Nomadik hardware to test for that.
>
> I have queued the relevant patches to an immutable branch in the
> pinctrl tree for testing and I can also pick up some ACKs if they arrive.
>
> When I'm confident in the branch, I will send an optional pull request
> to Bartosz for it!

That is all great news, thanks Linus! I'm staying available if you
encounter anything that needs action.

Have a nice day,

--
Th=C3=A9o Lebrun, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com